Looking for rotational molding alternatives for Nebraska? Want affordable custom plastic molding that is cost effective for Hebron area? Then give us a call at our toll free number 866-971-7861 or request a quote today!

rotomoulding-Hebron-Rotational moulding refers to a plastic manufacturing method that generates hollow stress-free product lines. The technique depends on high temperatures and bi axial rotation to come up with seamless, one piece objects that have varying designs, sizes and colors. This method is also referred to as rotomoulding or rotocasting. Sometimes the term slush moulding is used for certain liquid vinyl styles.

The component that makes this unique from other plastic manufacturing processes in that no pressure is needed. It also has few competitors when it involves the production of sizable hollow products which are long-lasting and inexpensive.There is a wide range of product lines that are produced by this process including large water tanks, automobile products, sophisticated molded medical items, recreation equipment, toys, canoes, commercial equipment among many others.This is due to the flexibility in terms of style and forms that the process produces

Benefits of Using Rotomolding to Manufacture Plastic Products

  • Relatively low tooling costs.
    When compared to other plastic manufacturing processes in Hebron NE 68370, it is a cheaper way of making plastics. This is because apart from the fact that no pressure is required, the cost of mold preparation is low.
  • A wide array of design options.
    There is no limit to the kind of design one may want to create. The rotational molding process therefore allows for the manufacturing of products that have complex shapes for different purposes.
  • Size.
    The process provides room for the manufacturing of products of any size, large or small. As mentioned earlier, it has few competitors when it comes to the making of large tanks at low costs.
  • Low risk.
    Due to the low costs of creating a mould, the process allows for test runs before one can decide whether to do mass production. It therefore minimizes the risk of losing a lot of investment.
  • Durable products.
    The process allows for even coating of the mould with the heated polymer, giving the product a wall with uniform thickness. It also gives the option of double coating for increased durability. Sometimes metal inserts are placed inside the mould to further strengthen the product.
  • Environmentally friendly.
    There is no waste that could have a negative impact on the environment because the products that cannot be used are reground and reused as polymer.

Examples of Products Made by Rotational Molding

Plastic Manufacturing-Hebron-Rotocasting is a very versatile process, making it possible to create a variety of products for different industries.

  • Agricultural industry– From cattle feeders, water troughs, spray tanks etc.
  • Automotive industry– Filler tubes, dash boards, arm rests, sun visors, air conditioner duct work etc.
  • Furniture– We have plastic cabinets, chairs and tables made from this form of moulding.

There are numerous Nebraska plastic products also that have been made for the marine industry, lighting, waste storage and transportation, kayaks etc.

Few Disadvantages – There are nominal disadvantages that have been associated with rotocasting. For instance:

  • – The process is relatively slow when compared to injection moulding.
  • – There is a limitation when it comes to the type of raw material you can use. Only poly based and nylon polymers can be used.
  • – The process comes with an increased cost because the polymer has to be ground to powder form before use.
    These limitations are often overlooked considering that the process is still relatively cheap and offers more in terms of variety when it comes to the finished range of products.

Remember – There are new developments and discoveries that are being made as the world of plastic manufacturing in Hebron Nebraska continuously. For instance, tests are being done to see whether there are other materials that can be used for this process. But so far, rotomoulding offers a good option for the production of a wide range of inexpensive plastic products.

The Roto-Molding Method in Detail

This moulding system has been used since early times for creatingvseverl product lines. Egyptians as an example, used rotomoulding solutions in the manufacturing of ceramics. The Swiss were also working with this rotation format to generate hollow chocolate eggs. Some plastic products in the USA were created utilizing this approach some time between 1940 and 1950. Given that it was thought of to be a rather slow-moving technique, the technique has however taken long to catch on

1. Mold prep work.
A fixed amount of polymer in grain form is loaded into a hollow mould. The mould is usually made from cast aluminium or sheet steel substance. The coloration desired for the final product is pre compounded into the polymer. The most often used powder resin is polythene, but polyvinyl chloride and nylon can also be used in this format of plastic production.

Pre-heating of the oven starts, and it can be done by either conduction, convection or sometimes radiation. It is heated up to temperatures between 500-700F. The mould with the powdered polymer is then sealed and inserted inside the oven.

2. The heating up and fusion process.
Once inside the oven, the mold is rotated on two axis so the powdered polymer liquefies from the heat and coats the inside if the mold. The rotation is done slowly, about 20 rotations per minute. One thing that is crucial at this point is the period of time the mould will spend inside the oven. If it stays to long, the component will lose stability and durability, generating a faulty product. If it is extracted from the oven prematurely, the polymer will not have flowed correctly, which develops bubbles in the completed product.

3. Mould cooling.
When the component has completely spent the correct amount of time in the oven, it is then extracted for cooling. This can be done by air or water, or sometimes a mixture of both which generates a cool mist. When the product cools, it shrinks a little for ease of extraction from the mold. This is one more step that relies a lot on the ideal timing, since rapid cooling reduces the material too rapidly, causing bending of the item.

4. The discharging or de-moulding step.
As soon as the component within te mould has cooled successfully, the molder handling the process can then extract the finalized product from the mold. The technique is repeated from the start, giving a series of exact products.

For more information on the different rotational rotomolding options offered for the Hebron NE 68370 area, please call our toll free number  866-971-7861 or fill out the form on the right for a consultation!

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